ACL2-PC::PSOG

Print the most recent proof attempt from inside the proof-checker, including
goal names, assuming you are in gag-mode or have saved output
(see set-saved-output). This includes all calls to the prover, including
for example proof-checker commands induct, split, and bash,
in addition to prove. So for example, you can follow (quiet prove)
with psog to see the proof, including proof-tree output, if it
failed.

See also documentation for related proof-checker commands pso and
pso!.